720645411 has 16 divisors (see below), whose sum is σ = 1003564800. Its totient is φ = 459518688.

The previous prime is 720645383. The next prime is 720645427. The reversal of 720645411 is 114546027.

720645411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 720645411 - 2¹⁴ = 720629027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (720645461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48471 + ... + 61568.

It is an arithmetic number, because the mean of its divisors is an integer number (62722800).

Almost surely, 2^720645411 is an apocalyptic number.

720645411 is a deficient number, since it is larger than the sum of its proper divisors (282919389).

720645411 is a wasteful number, since it uses less digits than its factorization.

720645411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110138.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 720645411 is about 26844.8395599601. The cubic root of 720645411 is about 896.5486793218.

The spelling of 720645411 in words is "seven hundred twenty million, six hundred forty-five thousand, four hundred eleven".